Window-screen.



A. G. OESTERLA.

WINDOW SCREEN.

APPLICATION FILED MAY 31, 1913.

1 1mm 5. Patented Feb. 16, 1915 WHMMQZ /6 5 THE NORRIS PETERS co.. Priors-urns WEsHINcroN. D. c,

ADAM C. OESTERLA, OF EDDYS'IONE, PENNSYLVANIA.

WINDOW-SCREEN.

essrs,

Specification of Letters Patent.

Patented Feb. 18, 1915..

Application filed May 81, 1913. Serial No. 770,817.

To all whom it may concern:

Be it known that I, ADAM C. OESTERLA, a citizen of the United States, residing at Eddystone, in the county of Delaware and State of Pennsylvania, have invented certain new and useful Improvements in Window-Screens, of which the following is a specification.

This invention relates to improvements in window screens and has for one object to provide an improved construction of screen which may be attached to the window frame in such a way as to permit access to the lower sash for raising or lowering the latter without necessarily disturbing the screen.

Another object is to provide a construc tion of screen which may be secured in the frame beneath the upper sash in a way which will permit of its ready removal, and a further object is to provide an improved construction of screen and trap which latter may be readily attached or detached when desired.

l/Vith these and other objects in view the invention is illustrated in the accompanying drawing, wherein,-

Figure 1, shows the inside front elevation of a window frame with the improved screen and trap in place. Fig. 2, shows a vertical longitudinal sectional View through the sashes, window frame and the screen in place therein,the trap however being removed. Fig. 3, is a view on an enlarged scale showing the upper portion of the screen, the trap in place therein and the adjacent portions of the window-frame. Fig. 41-, also shows a vertical longitudinal section through the sashes and window-frame with the screen guides attached to the windowframe but screen removed. Fig. 5, illus trates the frame and screen guides in perspective but on a larger scale and shows the construction which permits the swinging screen section to be mounted in the screen guide, and Fig. 6, is a perspective detail of the detached trap.

Referring to the drawing by numerals, 1, designates the window-frame having the spaced-part guide strips, 2, and, 3, and also having the usual removable strip, 4, whereby to form the usual vertical guide-ways, 5, and, 6, for the upper and lower sashes, 7, and, 8, respectively. The lower sash, 8, cperates in the usual manner but the upper sash, 7, will be immovable during the presof the strip,

, shown in Fig. 5

once of the screen guides as will presently be explained. In the guide-way, 5, of the upper sash, 7, I place a vertical strip, 9, which latter closely fills the space between the guide strips, 2, and, 3, and is rigidly held therein by means of screws or nails, 10, which latter are indicated by broken lines in Fig. 4, of the drawing. The outer vertical surface of this rigid strip, 9, is flush with the outer vertical faces, 11, of the guide strips, 2, and, 3. A vertical channel strip, 12, is seated against the outer vertical face 9, and extends from the sill, 13, up to the horizontal bottom rail, 14, of the upper sash, 7. This channel strip has a vertical outer rib, 15, and a vertical inner rib, 16, which are spaced apart to form a channel. The outer rib, 15, extends from one end of the strip to the other while the inner rib, 16, is shorter than the said outer rib and terminates below the upper end of the strip, 12, from which it projects, as clearly of the drawing. It will also be noted by reference to said Fig. 5,that the channel strip, 12, has a notch or recess, 17, at its upper end, at the inner side of the rib, 15, and in line with the channel,the purpose of which notch or recess will presently be explained. By referring to Fig. 4 of the drawing it will also be noted that the channel strip has a pivot, 18, midway between its upper and lower ends,the pivot extending through the strip and into the rigid strip, 9, so that the channel strip may be swung on said pivot to project its upper notched or recessed end outwardly from beneath the lower rail, 14, of the upper sash for a purpose which will presently be described.

From the foregoing explanation it will be understood that strip, 9, is rigid between guides, 2, and, 3, and has no vertical movement; that channel strip, 12, is held against vertical movement but is pivoted at, 18, to the strip, 9, so it may be swung on the pivot to turn the lower end inwardly and the upper notched end outwardly. It will be seen that the channel strip when swung clear the outer vertical faces, 11, of the guide strips, 2, and, 3, and that said strip may be turned horizontally if desired.

It will be understood that two strips, 9, and two channel strips, 12, will be utilized in each window-frame,one of each being at each side of the frame.

The screen is formed in two sections designated, 19, and, 20, respectively in the drawing,the section, 19, being a main rigid section and the section, 20, a movable section. The main section, 19, of the screen has a horizontal bottom bar, 21, two vertical side bars, 22, and a horizontal top cross-bar, 23,the latter having a horizontal flange, 24, at the outer upper edge. The width of these bars is such that they may project into the channel of strip, 12, between the ribs, 15, and, 16, and be held therein by said ribs without fastenings.

By referring to Figs. 1, 2 and 3, of the drawings it will be seen that the horizontal top bar, 23, of the main screen, 19, has position slightly above the upper ends, 25, of the inner rib, 16, on the channel strip, 12. The movable screen section, 20, also has a horizontal bottom bar, 26, two vertical side bars, 27, and a horizontal top bar, 28. The

horizontal bottom bar, 26, has a horizontal flange, 29, along the inner lower edge which projects over the top bar, 23, of the main screen, 19, and said flange, 29, seats against the inner side of the flange, 24, on said bar, 23, as shown in Fig. 2.

The horizontal top bar, 28, of the movable screenhas end trunnions or pivot pins, 30, which enter and seat in the notches or recesses, 17, in the upper ends of the guide strips, 12.

It will thus be understood that the upper movable screen, 20, is pivotally hung from the upper ends of the guide strips, 12, and that the lower flanged bar, 26, may be swung inwardly because the ribs, 16, at the inner side of the guide strips terminate below said flanged bar, 26.

In practice I prefer to provide a trap for the screen to catch bugs, flies and insects that may seek an outlet from a room through the screen. The trap comprises two telescoping members, 31, and, 32, so as to be adjusted to suit the width of the windowframe. These members have end walls, 33, with notches, 34, in their lower edges and have a screen, 35, in their outer sides. The notches in the end walls allow the latter to fit down over the flange, 24, on the top bar, 23, of the main screen with the screen surface, 35, close against the outer side of said flange, 24, as clearly shown in Fig. 3 of the drawing. The trap members have downwardly inclined inner plates, 36, and a reversely-inclined bottom plate, 37, which extends upwardly over the bar, 23, of the main screen and terminates at the inner side of the screen surface, 35. To insert the trap themovable screen section, 20, is swung inwardly and the trap members are hooked over the top bar of the main screen. The movable screen is then lowered onto the inclined plates, 36, of the trap and effectually closes the spaces about the trap.

If it is desired to lower the lower sash, 8, without removing the screen, the trap will be lifted from the top bar, 23, and the movable screen, 20, swung outwardly to close the opening that would otherwise be left, as shown in Fig. 2, and the lower sash may then be lowered.

To remove the screens, 19, and, 20, the upper ends of the channel bars, 12, will be swung outwardly to enable the screen 20, to be lifted from the notches, 1.7. The channel bars and main screen, 19, may then be turned horizontally on pivot, 18, and the screen, 19, withdrawn from said channel bars. By turning the channel bars, 12, on the pivot, 18, the fastening screws, 10, may be exposed so that strips, 9, may be removed.

Having thus described my invention what I claim and desire to secure by Letters Patent is 1. In a window screen the combination with the side strips to fit in the guide channel of a window frame beneath the upper sash, of a guide strip pivotally connected to each side strip; a stationary screen frame between the pivoted guide strips and a movable screen frame above the stationary screen frame and pivotally connected to said pivoted guide strips.

2. In a window screen the combination with the side strips to fit in the guide channel of a window frame below the upper sash, of a guide strip pivotally connected to each side strip; a main screen frame having bottom, top and side bars which latter are engaged by the pivoted guide strips and a movable screen frame having bottom, top and side bars,the bottom bar of the movable frame having position at the side of the top bar of the main screen frame when in the closed position and said movable frame being pivoted to the pivoted guide strips whereby its bottom bar may be swung away from the top bar of the main frame.

3. In a window screen the combination with two side strips to fit the guide channels of a window frame below the upper sash of a guide strip pivotally connected to each side strip and each guide strip having an outer longitudinal rib and an inner longitudinal rib to form a longitudinal channel-way,said inner rib of each guide strip terminating below the upper end of said guide strip; a screen frame held to the guide strips by the outer and inner ribs and a movable screen frame pivoted to the guide strips above the inner ribs on said guide strips whereby the lower edge of said movable frame may swing inwardly over the ends of said inner ribs.

4. In a window screen the combination with two side strips to fit the guide channels of a window frame below the upper sash,

1,128,815 i ii of a guide strip pivotally connected to each side strip and each guide strip having an outer longitudinal rib and an inner longitudinal rib the upper end of which latter rib terminates below the outer rib,said guide strips also having a recess above the upper end of the inner rib; a lower screen v frame sustained by the outer and inner ribs of the guide strips and an upper screen pivotally sustained from the recesses in the Hunter 01 this patent may be obtained for five cents each, by addressing the guide strips and having its lower edge adjacent to the upper ends of the inner ribs on the guide strips.

Witnesses:

GATHARINE M. GARVERY, DAN. D. CLYDE.

Commissioner of Patents,

Washington, D. 0." 

